Investigators assess the gastric contents by ultrasonography in fasted patients with previous subtotal gastrectomy.
Investigators evaluate the gastric contents by ultrasonography in fasted patients with previous subtotal gastrectomy, quantitatively and qualitatively. The frequency of visualization fully will be also analyzed.
Study Type
OBSERVATIONAL
Enrollment
24
Ultrasound assessment of gastric body is performed
Seoul National University Hospital
Seoul, South Korea
RECRUITINGIncidence of full cross section image
The gastric remnant body is assessed by ultrasound and the incidence of cross sectional image visualized fully is evaluated
Time frame: Before the induction of anesthesia
Type of gastric content assessed by gastric ultrasound
The type of gastric content is assessed by gastric ultrasound; solid, fluid, empty
Time frame: Before the induction of anesthesia
Cross section area of stomach body assessed by gastric ultrasound
Cross section area is assessed by gastric ultrasound in the supine and right lateral positions
Time frame: Before the induction of anesthesia
Incidence of full stomach
It is determined if the contents is solid or the amount of fluid is large.
Time frame: Before the induction of anesthesia
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